Ridwanulloh, A., Suyahmo, S. and Budi Utomo, C. 2022. The Effects of a Problem-Based Learning Model Aided by Mind Mapping on Self-directed Learning in Elementary School Students. Journal of Primary Education. 11, 1 (Mar. 2022), 1-13. DOI:https://doi.org/10.15294/jpe.v11i1.53645.